Natalya Nikolayevna Antyukh is a Russian sprinter who specializes in the 400 metres and 400 metres hurdles. She won the bronze medal in the 400 metres and a silver for the 4 × 400 m relay at the 2004 Summer Olympics in Athens. From Wikipedia
The American hurdler will be awarded her medal at a special ceremony during the Paris Olympics, following the disqualification of her Russian competitor.